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Rayos Contra Cancer

The Next Generation

RCC Performance Manager

Santiago Peralta

Captain Santiago Peralta is obtaining his M.Ed. in Leadership and Organization Performance at the Vanderbilt University Peabody College while on active duty, and he has been selected to perform an internship with RCC. Captain Peralta helped lead the economic analysis project with our Project Pyramid team, and traveled to Guatemala along with Ben Li to learn how RCC engages with centers abroad.


He also traveled to MD Anderson Cancer Center and UT-Southwestern to learn how high-income country academic institutions share interest in helping underserved populations and work to develop transformative technologies to address shortcomings in cancer care.

RCC Performance Manager,


RCC Ambassadors

Maria Caicedo, MD

Maria Caicedo graduated and received her medical degree from La Universidad del Rosario in Bogota, Colombia. She is intensely dedicated to improve cancer care for patients across Latin America. She hopes to bridge existing interest for collaboration in the U.S. with opportunities for development in Colombia and other Latin American countries, especially in areas of need. Her passion is pediatric oncology, where there is a great need for development. 


She is an aspiring radiation oncologist and currently helps bridge development efforts across education, training, and research for global health radiation oncology.

RCC Ambassador,

RCC ECHO Coordinators

Megan McLeod, BA

Megan McLeod is a Vanderbilt medical student with a B.A. in Biology and Thesis in Telemedicine. She is a graduate of the University of Mississippi and aspires to develop innovative programs to address health disparities nationally and abroad.

She has led the implementation of the SBRT & SRS curriculum in Latin America, is a medical student representative of the American Medical Association, and is involved in a new HDR-Brachytherapy curriculum that is launching across nine regional centers in developing countries.

ECHO Coordinator, Nashville

Michael Hermansen, PhD

Michael Hermansen is a medical physics resident at Banner MD Anderson Cancer Center in Gilbert, Arizona with a PhD in Medical Physics. He is a graduate of the University of Florida, is fluent in Spanish, and hopes to help cancer patients in developing countries realize better access to affordable, timely, and high quality radiation treatment. He feels privileged to work with like-minded colleagues both domestic and abroad.

He has helped design and implement the SBRT & SRS curriculum in Latin America, and is helping to scale more educational and research programs through RCC collaborations. He is an active member of Medical Physicists for World Benefit.

ECHO Coordinator, Phoenix

Jeremy "Britt" Hatcher, BA


Britt Hatcher is a Vanderbilt medical student with a B.A. in Astrophysics. He graduated from Vanderbilt University and is driven to bring healing through compassion and outreach.

He is helping to lead RCC's newest HDR-Brachytherapy curriculum and serves as a liaison between LMIC clinics and RCC educators.

ECHO Coordinator, Nashville

RCC Project Coordinators

Thomas Perez, BS

Thomas Perez is a Vanderbilt medical student with a B.S. in Biology and Computational Science. He is a graduate of the University of California Santa Barbara and has years of industry experiencing working in Silicon Valley before medical school. He hopes to lead new development efforts in Latin America that will improve access to the highest quality cancer care.

He facilitates the coordination of Latin American Cooperative Study 1 (LACOS-1). He specializes in RCC ProKnow support, clinic set up, management, and research instruction.

RCC-Vandy Chapter, Nashville

Benjin Facer, BA


Benjin Facer is a Vanderbilt medical student with a B.S. in Biophysics. He graduated from Brigham Young University and is driven to bring healing through compassion and outreach. Prior to medical school, he spent 2 years with Latino populations in Houston, TX as a missionary for the Church of Jesus Christ of Latter-day Saints.


He is helping to lead regional needs assessments in Latin America for radiation therapists (known as "tecnólogos médicos"), and coordinating new efforts amongst radiation therapist volunteers in the United States.

RCC-Vandy Chapter,

Claire Lo, BA


Claire Lo graduated from Harvard University with a B.A. in Human and Evolutionary Biology and is currently a medical student at Vanderbilt University. 

She has provided invaluable research support for efforts related to telehealth education and measuring the impact of remote training, in hopes of improving the way we deliver and design remote healthcare collaborations.

RCC-Vandy Chapter,

Ramsey Timmerman, BS

Ramsey Timmerman received duel undergraduate degrees in Genetics & Biotechnology as well as Finance from the University of Texas at Austin. While he was in Austin, he worked in the Whiteley Microbiology Lab as well as the Juenger Plant Genetics & Biofuel Lab. After graduation, he worked as an investment banking analyst in the Merrill Lynch Technology M&A group in Palo Alto, CA.


He currently works as a research assistant at the University of Texas Southwestern while concurrently providing research project support for Rayos Contra Cancer. He is assisting project growth for SBRT & SRS education as well as the design of research projects pertaining to artificial intelligence to enhance clinic performance in resource-limited settings.